(Since official names for the arcs are now revealed, there will be a few changes. This means the black factory arc will be included in this scenario.)

Scenario 1: You travel with Inugami to a rural village to investigate a series of rotting dead animals. An mysterious boy there ends up catching the attention of both you and Inugami's. Who is this boy?

Scenario 2 (This is if your oc stayed behind at Tokyo): You just arrived back at the office with Shiki, Akira and Chynna. You end up getting a surprise when you see someone you never seen before. 

Scenario 3 (This is for ocs who are working for Inari or is not affiliated with anyone): Make your own.